The bylaws don't address cancled Regular season games - only acts of God, war, etc for the Championship game. The paragraph below indicates how the divisional winner is chosen - it's a percentage of regular season games. This begs the question - would the denominator be 7 or 8 games for Florida and LSU?
Conference Championship. [SEC Bylaw 30.22.1.3] The Conference champion will be determined by a game between the two division champions. The team in each division with the highest percentage of wins during all regular- season Conference competition will be declared division champion. If two or more teams are tied with the highest percentage of wins, they will be declared division co-champions. Division standings will be calculated on a percentage basis, using only those Conference games which are a part of the regular rotating schedule. Details on all tie-breaking procedures are outlined in these Commissioner's Regulations. The site of the championship game shall be set by a vote of the Conference member institutions.
Conference Championship. [SEC Bylaw 30.22.1.3] The Conference champion will be determined by a game between the two division champions. The team in each division with the highest percentage of wins during all regular- season Conference competition will be declared division champion. If two or more teams are tied with the highest percentage of wins, they will be declared division co-champions. Division standings will be calculated on a percentage basis, using only those Conference games which are a part of the regular rotating schedule. Details on all tie-breaking procedures are outlined in these Commissioner's Regulations. The site of the championship game shall be set by a vote of the Conference member institutions.